But this morning the Labour frontbencher said he would not be taking up the position, saying: “I am grateful to Mishcon de Reya for discuss a possible role advising the Mishcon Academy with me but, given my other commitments, I have decided not to further the discussions.”

Mischon De Reya represented Gina Miller when the businesswoman took the Government to court over ‘Article 50’ late last year.

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